Good Choice - I'm doing a similar swap - 351w into my 65 Tbird - haven't done the math or the measuring yet but it should be a fairly easy fab up. I plan on setting the engine back and as low as possible - I may be able to simply use some back gusseted flat or angle and bolt to the single fe crossmember holes and simply bolt the early 351w mount to the plate as well. If I get going on this in a reasonable time frame I'll keep you posted - do the same if you would. - Birdman